Question

by java langage

QI A small online grocery store sells fruits with the following prices: Apple, 1.500 KWD; Orange, 0.700 KWD; Banana, 1.000 KWD; Peach, 2.500 KWD; and Melon, 1.750 KWD. Write an application that reads a series of pairs of values as follows: 1. fruit name 2. quantity sold Your program should use a switch statement to determine the price for each fruit. It should then calculate and display the total retail value of all sold fruits (e.g., if 5 Apple boxes was sold, then the total retail value for the Apples will be: 1.500 x 5 - 7.500). Use a sentinel-controlled loop to determine when the program should stop looping and display the final results. Note: It is up to you how do you design your program, how you read the data from the user and how you display the output. Q2 Write a class Draw that draws rectangles where the length and width depend on the user input. The class should have a main and a drawRectangle(int I, int w) methods. drawRectangle does not return any value to the main, it only draws the rectangle as shown in the output. Sample output: Enter the length: 8 Enter the width: 5 ** ** *

Answer 1

BillCalc.java

import java.util.*;
class BillCalc{
   public static void main(String[] args) {
       Scanner s=new Scanner(System.in);//scanner declarations
       Scanner sc=new Scanner(System.in);
       System.out.println("Enter Fruit name followed by quantity sold\n");
       String fn;
       int q=0;
       double p=0,tot=0;
       do{//iterating till termination condition reached
           System.out.println("Price list\n1.apple-1.5000 KWD\n2.orange-0.7000 KWD\n3.banana-1.000 KWD\n4.peach-2.5000 KWD\n5.melon-1.750 KWD\n");
           System.out.println("Enter Fruit name('end' to end)");

           fn=s.nextLine();//reading fruit name
           if(fn.equals("end"))
               break;//if 'end' received initially
           System.out.println("Enter quantity");
           q=sc.nextInt();//reading quantity of fruits
           switch(fn){//switch case to decide the fruit price
               case "apple" : p=1.500;
                               break;
               case "orange" : p=0.700;
                               break;
               case "banana" : p=1.000;
                               break;
               case "peach" : p=2.500;
                               break;
               case "melon" : p=1.750;
                               break;
               default    :p=0;
           }

       tot+=q*p;
       }while(fn!="exit");
       //printing the total
       System.out.printf("Total bill is %.03f",tot);

   }
}

output:

please take care while providing the fruit name as it is case sensitive.

2)Draw.java

import java.util.*;
class Draw{
   public static void drawRectangle(int l,int w){
       for (int i=0;i<w; i++ ) {//
           for (int j=0;j<l ;j++ ) {
               if(i==0 || i==w-1)
                   System.out.print("*");//first row or last row  
               else if(j==0 || j==l-1)
                   System.out.print("*");//first column or last column
               else
                   System.out.print(" ");//else case      
           }
           System.out.print("\n");
          
       }
   }
   public static void main(String[] args) {
       Scanner s=new Scanner(System.in);//scanner declaration
       System.out.println("Enter the length:");
       int l=s.nextInt();//reading leangth
       System.out.println("Enter the width: ");
       int w=s.nextInt();//reading width
       drawRectangle(l,w);//method call

   }
}

output: